The Iraqi Army, backed by Shiite, Sunni, and Iranian fighters, reportedly captured villages and oil fields east of the Islamic State-held city of Tikrit on Wednesday, cutting off a key supply route for the militants.

A military source told the BBC that Iraqi forces have taken control of the village of al-Maibdi, on the road to the Kurdish-controlled city of Kirkuk, and the nearby Ajil and Alas oil fields. The road is a key supply route for ISIS between the Salahuddin and Diyala provinces, the source added.